CMC Oil Drilling Grade
CMC is white and flowing fine powder. It is one of the most important water soluble polymers with many advantages that other natural or synthetic glues do not have.
CMC solution has good properties of thickening, adhering, emulsifying, and stabilizing. Membrane forming, moisture-holding, shape-holding, dispersing and anti-enzyme.
Oil drilling grade CMC, we have three types of CMC ;
High viscosity& high substitution CMC is suitable for the low density mud.
Low viscosity& high substitution CMC is suitable for the high density mud.
CMC should be adopted according to different types of mud, and the location and the depth of well
CMC used in Oil and gas drilling, dug wells and other projects It has the following characteristics:
- Excellent water retention even at low concentration.
- Excellent thickening effect.
- Good resistance to salt and temperature change.
-The mud that contains CMC can form the filter cake which can make the thin and hard well wall with low permeability to reduce the water loss.
-Adding CMC into the mud, the rig can get low gel initial. Mud is easy to release gas and debris be quickly abandoned in the wallow.
-As other suspended dispers oil, the drilling mud has a certain period of existence. After added CMC, the mud stability can be improved and existence period can be extended.
-The mud that contains CMC can rarely affected by mold. So No necessity is required to keep the PH at high value or use preservative.
-The treatment agent that contains CMC as drilling flushing fluid can resist the pollution caused by various kinds of soluble salts.
-The mud that contains CMC has a good stability. The water loss can be reduced even the temperature over 150 ℃.